Even if your work is on something fairly esoteric, you can almost certainly find someone qualified to review it on technical grounds, even if they're not an acknowledged expert in the precise topic you're writing about.
I have been unable to locate another book on this subject (its implementation in Go, anyway), but there are scores of experts in Go, many of whom are far more qualified than I am. I would respect their opinions on the book itself.
Best of luck in the process! Would you care to share the subject area? Now you've piqued my curiousity...